無益

(1)producing no result or effect; "a futile effort"; "the therapy was ineffectual"; "an otiose undertaking"; "an unavailing attempt"

(2)結果も効果も生じないさま

(3)unproductive of success; "a fruitless search"; "futile years after her artistic peak"; "a sleeveless errand"; "a vain attempt"

(4)非生産的な成功

(5)lacking in usefulness or value; "a worthless idler"

(6)有用性または価値が欠如するさま

(7)having no beneficial use or incapable of functioning usefully; "a kitchen full of useless gadgets"; "she is useless in an emergency"

(8)有効利用がない、あるいは役立つ機能をすることにおいて無能である

(1)